Detection Misunderstandings of High Frequency Electromagnetic Radiation Detector
Our netizens have a strong ability to accept new things, but they still lack some practical experience
For example, the above two electromagnetic radiation detectors are used to detect the high-frequency microwave electromagnetic radiation value in the room at the same time. The radiometer on the left shows that the microwave power density is 5.0uW/cm2, and the radiometer on the right shows that the microwave power density is 279uW/cm2.
This test is a wrong operation, because both instruments have power supply after all, and the two should not be next to each other, as there will be interference. It is recommended to open one instrument to read high-frequency data, turn it off, and put it aside. Then turn on another hand-held instrument to read high-frequency data.
Remember, don’t shoot with your mobile phone connected to the Internet. The mobile phone’s built-in Internet access itself is unstable in high-frequency radiation and can reach high values. Most of the time, when a mobile phone is connected to a non-5G router wifi, there will be no high-frequency radiation, but there will be temporary high-frequency radiation when WeChat transmits pictures.
Therefore, when you do the test, you must remember to eliminate the interference factors.
In addition, some netizens asked that the electromagnetic radiation meter 062 is more sensitive than 059, what is the matter?
In fact, this netizen also made the same mistake, which is to put the two radiometers together for testing at the same time.
If the radiation source distance is 100 meters, 062 can detect it, and 059 can also detect it. If you add 600 meters away, the value of 062 is very small, but 059 can still be detected. So it makes sense to be expensive.
Of course, 062 is enough.
Finally, some netizens said that after the microwave frequency is increased, can 062 still detect it? After all, the detection range of 062 is 6Hz-5GHz.
In fact, even if the microwave power density is increased to 1 W/cm2, that is, 1000 μW/cm2, the radiometer will rapidly increase from 0 to hundreds, or even thousands, until the reading reaches the highest value .
Everyone has another experience, how many microwatts per square centimeter, the human body can tolerate it, and how long it can last. For example, when I drive for an hour on the road without any radiation protection for the back of the head, the back of the head will hurt. If you are outdoors for eight hours, then the neck, thyroid and throat are dry and painful. At this time, the external microwave high-frequency radiation is more than 100 to more than 400 microwatts per square centimeter.
So you can imagine that if you are outdoors for more than 2 hours, your body will definitely respond. If you haven’t responded yet, then stay outdoors for a few more consecutive days.
In short, this 062 is enough. After all, the safe value of radio radiation is 40 microwatts/square centimeter, ten times is 400 microwatts/square centimeter, and 30 times is 1200 microwatts/square centimeter. At present, it has not been found under high-voltage lines. Thousands of high-frequency radiation data.
